Osage County, Kansas

Osage County is located in east-central Kansas, with Lyndon serving as the county seat. The area has a pleasant mix of prairie and wooded land. Since part of the county lies in the Flint Hills, you’ll find plenty of rolling terrain.

Pomona Lake is a popular spot for fishing and boating. The county is also home to another large lake, Melvern Lake. It’s the tenth-largest lake in the state.

There’s a little bit of everything here. U.S. Highway 75 runs through the county. Some residents commute to Topeka for work, while others focus on farm life. With about 15,000 people, it’s large enough to keep things moving.

CategoryDetails
County NameOsage County
County SeatLyndon
EtymologyNamed after Osage River, which flows through the county
Cities, Towns, and CommunitiesLyndon, Carbondale, Osage City, Quenemo, Burlingame, and several smaller communities
Interstates and HighwaysU.S. Highway 75, U.S. Highway 56, Kansas Highway 31
FIPS Code20-139
Total Area (Land and Water)724 square miles (land: 720 sq mi, water: 4 sq mi)
Adjacent Counties (and Direction)Shawnee County (North), Douglas County (Northeast), Franklin County (East), Coffey County (South), Lyon County (Southwest), Wabaunsee County (Northwest)
Time ZoneCentral Time Zone (CST)
Population16,000
StateKansas
Coordinates38.70°N, 95.72°W
Major LandmarksOsage County Courthouse, Lake Pomona, and the Santa Fe Trail
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